Patent application number | Description | Published |
20110032163 | Vehicular Glass Antenna - A vehicular glass antenna which is provided in an upper blank space of defogging heater strips of a rear window glass of the vehicle, the vehicular glass antenna includes: an AM broadcast wave receiving antenna including; a plurality of horizontal strips arranged at intervals, at least two vertical strips which are orthogonal to the horizontal strips, and which are apart from each other, and an AM feed point located between the vertical strips, on uppermost one of the horizontal strips or through an extension line extending from a portion of the uppermost one of the horizontal strips, and two FM broadcast wave receiving antennas extending, respectively, from two FM feed points provided above the uppermost one of the horizontal strips of the AM broadcast wave receiving antenna on left and right sides of the AM feed point, along a part of an outermost portion of the AM broadcast wave receiving antenna, the FM broadcast wave receiving antennas extending, respectively, in opposite directions of a clockwise direction and a counterclockwise direction, one of the FM broadcast wave receiving antennas which has a substantially U-shape, and which surrounds all of ends of the plurality of the horizontal strips of the AM broadcast wave receiving antenna on one side, the other of the FM broadcast wave receiving antennas which has a substantially U-shape, and which surrounds a part of ends of the plurality of the horizontal strips on the other side, and each of the two FM broadcast wave receiving antennas including a second horizontal strip which is adjacent to the horizontal strips of the AM broadcast wave receiving antenna to achieve the capacitive coupling. | 02-10-2011 |
20110043419 | Glass Antenna for Vehicle - There is provided an antenna for a vehicle which is formed on a space above defogging heater strips of a rear window glass of the vehicle. The antenna includes an AM broadcast wave receiving antenna including a plurality of horizontal strips provided at intervals, at least two vertical strips which are orthogonal to the horizontal strips, and which are apart from each other, and a first feed point provided between the two vertical strips, on uppermost one of the horizontal strips or through an extension line extending from a portion of the uppermost one of the horizontal strips; and an FM broadcast wave receiving antenna which extends in a clockwise direction or in a counterclockwise direction from a second feed point provided above the uppermost one of the horizontal strips of the AM broadcast wave receiving antenna, along a part of an outermost portion of the AM broadcast wave receiving antenna to surround the AM broadcast wave receiving antenna, and which is adjacent to at least a part of the horizontal strips of the AM broadcast wave receiving antenna to achieve a capacitive coupling. | 02-24-2011 |
Patent application number | Description | Published |
20090097887 | IMAGE FORMING APPARATUS - An image forming apparatus includes a plurality of vibration members configured to vibrate a regulating member that regulates a developer layer thickness on a developer bearing member, and a control unit that can execute a vibration mode which vibrates the plurality of vibration members during different periods so that the plurality of vibration members do not vibrate simultaneously when an image is not being formed. | 04-16-2009 |
20090317139 | IMAGE FORMING APPARATUS - An image forming apparatus includes a developing apparatus for developing an electrostatic image with a developer comprising at least a toner and a first external additive, the developing apparatus including a plurality of developing devices, containing toners different in color or lightness from each other, in which at least two developing devices contain a dark color toner and a light color toner which have an identical hue and different lightnesses and the developing device containing the light color toner is subjected to a developing operation prior to another developing device; a first transfer apparatus for sequentially transferring toner images, which have been developed by the plurality of developing devices, onto an intermediary transfer member; and a second transfer apparatus for transferring the toner images from the intermediary transfer member all together onto a transfer medium The first external additive includes particles having an aspect ratio of not less than 1.0 and not more than 1.5 and a number-average particle size of not less than 0.06 μm and not more than 0.3 μm, and has a coverage thereof with respect to the light color toner larger than that with respect to the dark color toner in a transferred state on the intermediary transfer member. | 12-24-2009 |
20120099900 | IMAGE FORMING APPARATUS - A developing device comprising a developer carrying member for carrying the developer containing non-magnetic toner and magnetic carrier to a position where said developer carrying member is opposed to an image bearing member; a developing container including a first chamber for accommodating a developer to be supplied to said developer carrying member, a second chamber provided below said first chamber, and a pair of transferring portions for circulating the developer between said first chamber and said second chamber; a first feeding member and a second feeding member, rotatably provided, in said first chamber and said second chamber, respectively, for stirring and feeding the developer; and a magnetic member provided at least on said first feeding member, wherein said magnetic member is provided in a region opposing at least one of said transferring portions where the developer is scooped from said second chamber into said first chamber. | 04-26-2012 |
20120148313 | IMAGE FORMING APPARATUS - The specification discloses a developing device comprises a first developer bearing member configured to bear a developer including a toner and a carrier, and to convey the developer to a first developing region facing an image bearing member, so as to develop an electrostatic latent image formed onto the image bearing member and a second developer bearing member configured to bear a developer transferred from the first developer bearing member, and to develop an electrostatic latent image formed on the image bearing member, by conveying a developer to a second developing region facing the image bearing member and a cover unit configured to shield a route toward the image bearing member from a mutual gap position between the first developer bearing member and the second developer bearing member. | 06-14-2012 |
20120163878 | DEVELOPING DEVICE - A developing device includes a developing sleeve for carrying a developer containing a magnetic carrier and a non magnetic toner; a magnet, provided in the sleeve and including a plurality of magnetic poles disposed along a circumferential direction of the sleeve, for carrying the developer on the sleeve; and a regulating member, provided opposed to the sleeve with a predetermined spacing in a region in which the magnetic poles different in polarity are adjacent to each other, for regulating an amount of the developer carried on the sleeve. The magnetic poles are disposed so that a circumferential direction component of a magnetic force acting on the magnetic carrier contacting at least a part of an upstream regulating surface of the regulating member with respect to the circumferential direction of rotation of the sleeve is opposite from the circumferential direction of the rotation. | 06-28-2012 |
20120195647 | DEVELOPING DEVICE - A developing device includes a plurality of developer carrying members each for carrying at its surface a developer for developing an electrostatic latent image on an image bearing member. Of the plurality of developer carrying members, the developer carrying member requiring a largest driving torque resulting from the developer has a surface which has a plurality of grooves extending in parallel in a direction having a component of an axial direction of the developer carrying member at a predetermined interval, and wherein another developer carrying member has a blasted surface. | 08-02-2012 |
20120207496 | IMAGE FORMING APPARATUS - A representative configuration of an image forming apparatus according to the invention is provided. The image forming apparatus has a plurality of developing devices which develops an electrostatic latent image formed on a photosensitive drum into a toner image using developer of plural colors. The image forming apparatus includes a density sensor which detects the amount of toner of the toner image for each color. In a case where it is determined that the amount of toner of any color departs from a predetermined range based on the detection result of the density sensor, a development condition of the rest developing devices other than the developing device departing from the predetermined range is changed such that the image densities developed by the respective developing devices are equal to each other. | 08-16-2012 |
20130016998 | DEVELOPING DEVICEAANM Noguchi; AkihiroAACI Toride-shiAACO JPAAGP Noguchi; Akihiro Toride-shi JPAANM Nose; KatsuyaAACI Matsudo-shiAACO JPAAGP Nose; Katsuya Matsudo-shi JPAANM Takahashi; KyosukeAACI Toride-shiAACO JPAAGP Takahashi; Kyosuke Toride-shi JP - A developing device includes a developer carrying member for carrying a developer; a first feeding portion for supplying the developer to the developer carrying member while feeding the developer along the developer carrying member; a second feeding portion, communicating with the first feeding portion at end portions thereof, for feeding the developer in a direction opposite to a developer feeding direction of the first feeding portion while collecting the developer from the developer carrying member; and a partition wall portion for partitioning the first and second feeding portions. The partition wall portion includes an opposing portion opposing the developer carrying member with a spacing. A surface roughness of at least the opposing portion is larger than that of the developer carrying member. | 01-17-2013 |
20130129376 | DEVELOPING DEVICE - A magnetic flux density formed on a sleeve surface by a magnetic seal member on a downstream side in a conveyance direction of a developer agitation and conveyance member is greater than a magnetic flux density formed on the sleeve surface by a magnetic seal member on an upstream side in the developer conveyance direction. | 05-23-2013 |
20140255047 | IMAGE FORMING APPARATUS - A controller which controls a replenishing operation of the first replenishing device based on the first sensor, and controls a replenishing operation of the second replenishing device based on the second sensor; wherein the controller prohibits the replenishing operation of the first replenishing device when the developer concentration in the first replenishing device reaches a first upper limit set to the first developing device; wherein the controller prohibits the replenishing operation of the second replenishing device when the developer concentration in the second replenishing device reaches a second upper limit set to the second developing device; and wherein the controller corrects the second upper limit based on the developer concentration in the second developing device when the developer concentration in the first developing device reaches the first upper limit. | 09-11-2014 |